Boost 1.33.1 Beta is now available at http://www.boost.org. This is a
bug fix release to 1.33.0, containing updates to existing libraries and
additional computer support.

Updated Libraries

* Any Library: Cast to reference types introduced in 1.33.0 is now
documented on any_cast documentation page.
* Config Library: Don't undef BOOST_LIB_TOOLSET after use.
* Boost.Python:
o The build now assumes Python 2.4 by default, rather
than 2.2
o Support Python that's built without Unicode support
o Support for wrapping classes with overloaded address-of
(&)
operators
* Smart Pointer Library: Fixed problems under Metrowerks
CodeWarrior on PowerPC (Mac OS X) with inlining on, GNU GCC on
PowerPC 64.
* Regex Library: Fixed the supplied makefiles, and other small
compiler specific changes. Refer to the regex history page for
more information on these and other small changes.
* Iostreams Library: Improved the interface for accessing a chain's
components, added is_open members to the file and file descriptor
devices, fixed memory-mapped files on Windows, and made minor
changes to the documentation.
* Functional/Hash Library: Fixed the points example.
* Multi-index Containers Library: Fixed a problem with
multithreaded code, and other minor changes. Refer to the library
release notes for further details.
* Graph Library: Fixed a problem with the relaxed heap on x86
Linux. Fixed problems with cuthill_mckee_ordering and
king_ordering producing no results.
* Signals Library: Fixed problems with the use of Signals across
shared library boundaries.
* Thread library: read_write_mutex has been removed due to problems
with deadlocks.

Supported Compilers

Boost is tested on a wide range of compilers and platforms. Since Boost
libraries rely on modern C++ features not available in all compilers,
not all Boost libraries will work with every compiler. The following
compilers and platforms have been extensively tested with Boost,
although many other compilers and platforms will work as well. For more
information, see the regression test results.

New for this release: Support for building with the newest STLport-5.0
was added. The support includes building with MinGW Runtime 3.8 plus
STLport-5.0 improved to support wide character operations. Apple GCC
4.0, HP Tru64 C++, and Microsoft Visual C++ 8.0 are supported
platforms. We have added an experimental autoconf-like configure script
for Unix-like systems: run configure --help for more information.

A great number of people contributed their time and expertise to make
this release possible. Special thanks go to Aleksey Gurtovoy and Misha
Bergal, who managed to keep the regression testing system working
throughout the release process; David Abrahams, Beman Dawes, Aleksey
Gurtovoy, Bronek Kozicki, Rene Rivera and Jonathan Turkanis for greatly
improving the quality of this release; Rene Rivera for the new Boost
web page design; and Zoltan "cad" Juhasz for the new Boost logo.